CN110788972B - Method for manufacturing multi-curved surface modeling lining die for concrete structure - Google Patents
Method for manufacturing multi-curved surface modeling lining die for concrete structure Download PDFInfo
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- CN110788972B CN110788972B CN201911044424.7A CN201911044424A CN110788972B CN 110788972 B CN110788972 B CN 110788972B CN 201911044424 A CN201911044424 A CN 201911044424A CN 110788972 B CN110788972 B CN 110788972B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/346—Manufacture of moulds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/16—Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B7/00—Moulds; Cores; Mandrels
- B28B7/34—Moulds, cores, or mandrels of special material, e.g. destructible materials
- B28B7/348—Moulds, cores, or mandrels of special material, e.g. destructible materials of plastic material or rubber
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Abstract
The invention provides a method for manufacturing a multi-curved-surface modeling lining die for a concrete structure, which comprises the steps of preparing a plurality of glass fiber reinforced plastic hollow modules, splicing the plurality of glass fiber reinforced plastic hollow modules to form the multi-curved-surface modeling lining die, wherein each glass fiber reinforced plastic hollow module is made of multiple layers of glass fiber reinforced plastics, and a framework is embedded in a glass fiber reinforced plastic coating of a middle core layer, so that the manufactured multi-curved-surface modeling lining die has better advantages in the aspects of quality, pressure resistance, transportation, field construction and the like. The invention solves the problems of easy deformation, heavy weight, difficult transportation and low field installation efficiency of the traditional lining die.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a method for manufacturing a multi-surface modeling lining die for a concrete structure.
Background
In construction work, formworks are mainly used for the casting of building concrete elements such as beams, slabs, columns and other concrete forms.
When beams, plates, columns and other modeled concrete members need to be cast, lining molds with specific models can be embedded into the common templates to realize the modeling of the cast concrete. However, existing lining forms generally employ a wood or metal structure. The wooden lining mold is easy to machine and form, but when the wooden lining mold is used for large building modeling, the pressure of concrete is extremely high, the wooden structure is easy to deform, and the pressure resistance is not strong. The metal lining die is difficult to mold and process, difficult to mold and construct, and the metal component has extremely heavy weight and is difficult to transport, install on site and the like.
Disclosure of Invention
In order to overcome the defects in the prior art, the method for manufacturing the multi-curved-surface modeling lining die for the concrete structure is provided so as to solve the problems that the traditional lining die is easy to deform, heavy, difficult to transport and low in field installation efficiency.
In order to achieve the above object, there is provided a method for manufacturing a multi-surface modeling lining mold for a concrete structure, comprising the steps of:
manufacturing a gypsum external mold according to a designed concrete structure, wherein the gypsum external mold is provided with an empty mold cavity, and the shape and the size of the empty mold cavity are matched with those of the concrete structure;
dividing the inner wall of the hollow mold cavity into a plurality of molding areas;
providing glass fiber reinforced plastic paint and a skeleton, and respectively and sequentially coating the glass fiber reinforced plastic paint on the inner walls of the hollow mold cavities of the plurality of molding areas to form an outer surface layer, a middle core layer and an inner base layer, wherein when the glass fiber reinforced plastic paint of the middle core layer is coated, the skeleton is embedded in the glass fiber reinforced plastic paint of the middle core layer, and the glass fiber reinforced plastic paint coated in each molding area is solidified to form a glass fiber reinforced plastic hollow module;
and splicing a plurality of glass fiber reinforced plastic hollow modules in the molding area to form the multi-surface modeling lining mold.
Further, the step of manufacturing the gypsum external mold according to the designed concrete structure comprises the following steps:
manufacturing a core mould according to the shape and the size of a designed concrete structure, so that the shape and the size of the core mould are matched with those of the concrete;
and providing a gypsum coating, and coating the gypsum coating on the outer wall of the core mold to form a gypsum outer mold.
Further, the step of coating the gypsum coating on the outer wall of the core mold to form the gypsum outer mold further comprises:
providing oil hemp threads, mixing the oil hemp threads into a gypsum coating, and coating the gypsum coating mixed with the oil hemp threads on the outer wall of the core mold to form a gypsum outer mold.
Further, the step of coating the gypsum coating on the outer wall of the core mold to form the gypsum outer mold further comprises:
coating the gypsum coating on the outer wall of the core mold;
and providing a gypsum framework, and embedding the gypsum framework in a gypsum coating coated on the outer wall of the core mold to form a gypsum outer mold.
Further, the step of manufacturing the core mold according to the designed shape and size of the concrete structure includes:
providing a base material, and engraving the base material according to the three-dimensional data of the concrete structure to obtain an initial core mold;
providing a gypsum coating, and coating the gypsum coating on the outer wall of the initial core mold for gypsum sealing;
and grinding and polishing the outer wall of the sealed initial core mold to obtain the core mold.
Further, the substrate is polystyrene foam.
Furthermore, the glass fiber reinforced plastic coating comprises a resin base material, glass fiber cloth and a glass fiber felt, and the steps of respectively and sequentially coating the glass fiber reinforced plastic coating on the inner walls of the hollow mold cavities of the plurality of molding areas to form an outer surface layer, a middle core layer and an inner base layer comprise:
h. coating a first layer of the resin base material on the inner wall of the hollow mold cavity;
i. adhering the glass fiber cloth to the resin base material of the first layer;
j. coating a second layer of the resin base material on the glass fiber cloth;
k. adhering the glass fiber felt to the resin base material of the second layer to form the outer surface layer;
repeating the steps h-k, and forming the middle core layer on the outer surface layer;
repeating the steps h-k, and forming the inner base layer on the middle core layer;
wherein, when the glass fiber cloth of the middle core layer is pasted on the resin base material of the first layer, the framework is embedded in the glass fiber cloth.
Further, the number of the outer surface layers is multiple.
Further, the number of the inner base layers is multiple.
The invention has the advantages that the hollow mold cavity is utilized to manufacture the multi-curved surface modeling lining mold, so that the modeling of the manufactured concrete structure is consistent with the shape and the size of the designed concrete structure, the multi-curved surface modeling lining mold made of the glass fiber reinforced plastics is convenient and quick to process, the multi-curved surface modeling lining mold is suitable for on-site production and manufacture, the finished lining mold has strong compression resistance, and compared with the traditional metal lining mold, the multi-curved surface modeling lining mold has light weight, convenient transportation and high on-site installation efficiency. On the other hand, the multi-curved surface modeling lining die has high strength, light weight and convenient use and installation; meanwhile, the manufacturing method is simple and convenient, the molding and processing are easy, and the mass production and manufacturing can be realized through the mold manufactured firstly.
Drawings
Fig. 1 is a schematic structural view of a multi-surface modeling lining form for a concrete structure according to an embodiment of the present invention.
FIG. 2 is a schematic structural diagram of a part of the glass fiber reinforced plastic hollow module assembly according to an embodiment of the present invention.
Fig. 3 is a schematic cross-sectional structure view of a glass fiber reinforced plastic hollow module according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Fig. 1 is a schematic structural view illustrating a method for manufacturing a multi-surface modeling lining mold for a concrete structure according to an embodiment of the present invention, fig. 2 is a schematic structural view illustrating a part of a glass fiber reinforced plastic hollow module according to an embodiment of the present invention, and fig. 3 is a schematic sectional structural view illustrating a glass fiber reinforced plastic hollow module according to an embodiment of the present invention.
Referring to fig. 1 to 3, the present invention provides a multi-surface modeling lining form prepared by a multi-surface modeling lining form manufacturing method for a concrete structure, which comprises a plurality of glass fiber reinforced plastic hollow modules 1 spliced together. At least one glass fiber reinforced plastic hollow module comprises a curved surface structure. The glass fiber reinforced plastic hollow module 1 includes: an outer skin layer 13, an inner base layer 11, and a central core layer 12 disposed between the outer skin layer 13 and the inner base layer 11. A skeleton is embedded in the middle core layer 12.
The manufacturing method of the multi-curved-surface modeling lining die for the concrete structure is convenient and rapid to process, is suitable for field production and manufacturing, has strong compression resistance of the finished lining die, and has light weight, convenient carrying and transportation and high field installation efficiency compared with the traditional metal lining die.
The manufacturing method of the multi-curved-surface modeling lining die for the concrete structure is integrally made of glass fiber reinforced plastics, and has the advantages of high strength, light weight and convenience in use and installation; meanwhile, the manufacturing method is simple and convenient, the molding and processing are easy, and the mass production and manufacturing can be realized through the mold manufactured firstly.
In this embodiment, the side walls of the glass fibre reinforced plastic hollow module 1 comprise an outer skin 13, a central core 12 and an inner base layer 11. The outer skin layer 13, the core layer 12 and the inner base layer 11 respectively comprise a first resin layer a, a glass fiber cloth layer b, a second resin layer c and a glass fiber felt layer d which are laminated together.
Glass Fiber Reinforced Plastics (Fiber Reinforced Plastics), i.e., Fiber Reinforced composite Plastics. It is a composite material using glass fibre and its products (glass cloth, band, felt and yarn, etc.) as reinforcing material and synthetic resin as base material. The fiber reinforced composite material is composed of reinforcing fibers and a matrix. The diameter of the fiber (or whisker) is very small, generally below 10 mu m, the defects are few and small, the fracture strain is about thirty thousandths of a thousand, and the fiber (or whisker) is a brittle material and is easily damaged, fractured and corroded. The matrix is much lower in strength and modulus than the fibers, but can withstand large strains, tends to be viscoelastic and elastoplastic, and is a tough material.
In this embodiment, the number of layers of the outer skin layer and the inner base layer is one.
In some embodiments, the number of outer skin layers 13 is multiple layers and the number of inner base layers 11 is multiple layers. The number of the outer surface layer and the inner base layer is determined according to the thickness or the local thickness of the glass fiber reinforced plastic hollow module.
In a preferred embodiment, the skeleton is embedded in the glass fiber cloth layer b of the middle core layer 12.
Specifically, the skeleton includes a first rib 141 and a second rib (not shown in the drawings) arranged to cross each other. The number of the first ribs 141 and the second ribs is plural. The first ribs 141 and the second ribs are arranged to intersect to form a grid-shaped skeleton.
In this embodiment, the first and second ribs are formed of steel. Furthermore, the first rib and the second rib are angle steels.
At the corner position (external corner or internal corner) of the glass fiber reinforced plastic hollow module, a reinforcing steel bar net piece can be adopted to connect the first ribs and the second ribs of two adjacent surfaces.
In order to further improve the field installation efficiency, a plug-in connector 15 and a socket sleeve are arranged in each glass fiber reinforced plastic hollow module 1. The plug-in connector 15 of the glass fiber reinforced plastic hollow module 1 is embedded in the socket sleeve of the adjacent glass fiber reinforced plastic hollow module 1.
Support 2 in being equipped with between the pressurized upper and lower face of glass steel hollow module, further prevent that glass steel hollow module from taking place great deformation when pouring, improving compressive resistance.
When the glass fiber reinforced plastic hollow modules are installed and spliced on site, plugging glue is filled in the splicing seams between the adjacent glass fiber reinforced plastic hollow modules 1. Further, the plugging glue is foam glue. And the splicing seams of the adjacent glass fiber reinforced plastic hollow modules are coated with glass fiber reinforced plastics.
Specifically, the treatment of the splicing seams between the adjacent glass fiber reinforced plastic hollow modules comprises the steps of filling the splicing seams with foam rubber and then troweling the splicing seams with putty. And after the joint is leveled, polishing the joint seam, and finally coating the surface layer of the joint seam with glass fiber reinforced plastics.
The invention provides a method for manufacturing a multi-surface modeling lining die for a concrete structure, which comprises the following steps:
s1, manufacturing a gypsum external mold according to the designed concrete structure, wherein the gypsum external mold is provided with an empty mold cavity, and the shape and the size of the empty mold cavity are matched with those of the concrete structure.
And S11, manufacturing a core mould according to the shape and the size of the designed concrete structure, so that the shape and the size of the core mould are matched with those of the concrete.
Specifically, step S11 includes: providing a base material, and carving the base material according to the three-dimensional data of the modeling concrete structure to obtain an initial core mould. In this example, the substrate is polystyrene foam.
And designing the three-dimensional data of the multi-surface modeling lining model according to the modeling three-dimensional data of the modeling concrete. And partitioning the three-dimensional model of the multi-surface modeling lining model prototype and inputting the partitioned three-dimensional model data into the numerical control machine tool. And the numerical control machine tool carries out the block carving of the multi-curved-surface polystyrene foam core mold according to the input three-dimensional model data after the block carving to obtain a plurality of multi-curved-surface polystyrene foam core molds. Assembling the carved multiple multi-curved surface polystyrene foam core molds into an integral model. And (3) carrying out gypsum sealing on the surface of the multi-curved-surface polystyrene foam model. And (3) grinding and polishing the surface of the polystyrene foam model closed by the gypsum to obtain the multi-curved-surface core model.
And S12, providing a gypsum coating, and coating the gypsum coating on the outer wall of the core mold to form the gypsum external mold.
And S121, providing a gypsum coating, and coating the gypsum coating on the outer wall of the initial core mold for gypsum sealing.
And S122, grinding and polishing the outer wall of the closed initial core mold to obtain the core mold.
As a preferred embodiment, step S12 specifically includes:
providing a gypsum coating and oil hemp threads, mixing the oil hemp threads into the gypsum coating, and coating the gypsum coating mixed with the oil hemp threads on the outer wall of an initial core mold for gypsum sealing.
And grinding and polishing the outer wall of the sealed initial core mold to obtain the core mold.
In a preferred embodiment, a gypsum framework is provided, and the gypsum framework is embedded in a gypsum coating coated on the outer wall of the initial core mold to form a gypsum outer mold.
And S2, dividing the inner wall of the empty cavity into a plurality of molding areas.
And reasonably dividing the parting line according to the surface modeling characteristics of the core mold, wherein the parting line is positioned at the center of the plane of the convex surface as much as possible, and the parting line is prevented from being positioned at the external corner. And after the gypsum external mold is formed, removing the core mold to obtain a plurality of gypsum modules, and splicing the gypsum modules into the finished gypsum external mold. The inner wall of the empty mold cavity in the plaster outer mold is divided into a molding area according to each plaster module.
S3, providing glass fiber reinforced plastic paint and a skeleton, and sequentially coating the glass fiber reinforced plastic paint on the inner walls of the hollow cavities of the plurality of molding areas to form an outer surface layer 13, a middle core layer 12 and an inner base layer 11, wherein when the glass fiber reinforced plastic paint of the middle core layer 12 is coated, the skeleton is embedded in the glass fiber reinforced plastic paint of the middle core layer 12, and the glass fiber reinforced plastic paint coated in each molding area is solidified to form the glass fiber reinforced plastic hollow module 1.
The glass fiber reinforced plastic coating comprises a resin base material, glass fiber cloth and a glass fiber felt.
Specifically, the steps of sequentially coating glass fiber reinforced plastic paint on the inner walls of the hollow mold cavities of the plurality of molding areas to form the outer surface layer 13, the middle core layer 12 and the inner base layer 11 respectively comprise:
h. coating a first layer of resin base material a on the inner wall of the hollow mold cavity;
i. adhering glass fiber cloth b to the resin base material a of the first layer;
j. coating a second layer of resin base material c on the glass fiber cloth b;
k. adhering the glass fiber felt d to the resin base material c of the second layer to form an outer surface layer 13;
repeating the steps h-k to form a middle core layer 12 on the outer surface layer 13;
repeating the steps h-k to form an inner base layer 11 on the central core layer 12;
when the glass fiber cloth b of the middle core layer 12 is adhered to the resin base material a of the first layer, the skeleton is embedded in the glass fiber cloth b.
In some embodiments, the number of outer skin layers 13 and inner base layers 11 is multiple.
And respectively brushing a release agent on the inner surface of each gypsum module, and then coating the glass fiber reinforced plastic coating on the inner surface of each gypsum module.
And S4, splicing the glass fiber reinforced plastic hollow modules 1 in the plurality of molding areas to form the multi-surface modeling lining mold.
The multi-curved surface modeling lining mold is manufactured by utilizing the empty mold cavity, so that the modeling of the manufactured concrete structure is consistent with the shape and the size of the designed concrete structure, the multi-curved surface modeling lining mold manufactured by utilizing the glass fiber reinforced plastics is convenient and quick to process, is suitable for field production and manufacture, has strong pressure resistance of a finished product lining mold, has light weight compared with the traditional metal lining mold, is convenient to carry and transport, and has high field installation efficiency. On the other hand, the multi-curved surface modeling lining die has high strength, light weight and convenient use and installation; meanwhile, the manufacturing method is simple and convenient, the molding and processing are easy, and the mass production and manufacturing can be realized through the mold manufactured firstly. According to the invention, a plurality of glass fiber reinforced plastic hollow modules are prepared, and then the plurality of glass fiber reinforced plastic hollow modules are spliced to form the multi-curved-surface modeling lining die, each glass fiber reinforced plastic hollow module is made of multiple layers of glass fiber reinforced plastics, and the framework is embedded in the glass fiber reinforced plastic coating of the middle core layer, so that the prepared multi-curved-surface modeling lining die has better advantages in the aspects of quality, compression resistance, transportation, and field construction.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the invention is to be defined by the scope of the appended claims.
Claims (9)
1. A method for manufacturing a multi-surface modeling lining die for a concrete structure is characterized by comprising the following steps:
manufacturing a gypsum external mold according to a designed concrete structure, wherein the gypsum external mold is provided with an empty mold cavity, and the shape and the size of the empty mold cavity are matched with those of the concrete structure;
dividing the inner wall of the hollow mold cavity into a plurality of molding areas;
providing glass fiber reinforced plastic paint and a skeleton, and respectively and sequentially coating the glass fiber reinforced plastic paint on the inner walls of the hollow mold cavities of the plurality of molding areas to form an outer surface layer, a middle core layer and an inner base layer, wherein when the glass fiber reinforced plastic paint of the middle core layer is coated, the skeleton is embedded in the glass fiber reinforced plastic paint of the middle core layer, and the glass fiber reinforced plastic paint coated in each molding area is solidified to form a glass fiber reinforced plastic hollow module;
and splicing a plurality of glass fiber reinforced plastic hollow modules in the molding area to form the multi-surface modeling lining mold.
2. The method for manufacturing a multi-surface modeling lining form for a concrete structure according to claim 1, wherein the step of manufacturing a gypsum external form according to the designed concrete structure comprises:
manufacturing a core mould according to the shape and the size of a designed concrete structure, so that the shape and the size of the core mould are matched with those of the concrete;
and providing a gypsum coating, and coating the gypsum coating on the outer wall of the core mold to form a gypsum outer mold.
3. The method for manufacturing a multi-surface modeling lining form for a concrete structure according to claim 2, wherein the step of applying the gypsum coating material on the outer wall of the core form to form a gypsum outer form further comprises:
providing oil hemp threads, mixing the oil hemp threads into a gypsum coating, and coating the gypsum coating mixed with the oil hemp threads on the outer wall of the core mold to form a gypsum outer mold.
4. The method for manufacturing a multi-surface modeling lining form for a concrete structure according to claim 2, wherein the step of applying the gypsum coating material on the outer wall of the core form to form a gypsum outer form further comprises:
coating the gypsum coating on the outer wall of the core mold;
and providing a gypsum framework, and embedding the gypsum framework in a gypsum coating coated on the outer wall of the core mold to form a gypsum outer mold.
5. The method of manufacturing a multi-surface modeling lining form for a concrete structure according to claim 2, wherein the step of manufacturing a core form according to the designed shape and size of the concrete structure comprises:
providing a base material, and engraving the base material according to the three-dimensional data of the concrete structure to obtain an initial core mold;
providing a gypsum coating, and coating the gypsum coating on the outer wall of the initial core mold for gypsum sealing;
and grinding and polishing the outer wall of the sealed initial core mold to obtain the core mold.
6. The method for manufacturing a multi-surface modeling lining form for a concrete structure according to claim 5, wherein the base material is polystyrene foam.
7. The method of claim 1, wherein the glass fiber reinforced plastic coating comprises a resin base material, a glass fiber cloth and a glass fiber mat, and the step of sequentially coating the glass fiber reinforced plastic coating on the inner walls of the empty cavities of the molding areas to form an outer surface layer, a core layer and an inner base layer comprises:
h. coating a first layer of the resin base material on the inner wall of the hollow mold cavity;
i. adhering the glass fiber cloth to the resin base material of the first layer;
j. coating a second layer of the resin base material on the glass fiber cloth;
k. adhering the glass fiber felt to the resin base material of the second layer to form the outer surface layer;
repeating the steps h-k, and forming the middle core layer on the outer surface layer;
repeating the steps h-k, and forming the inner base layer on the middle core layer;
wherein, when the glass fiber cloth of the middle core layer is pasted on the resin base material of the first layer, the framework is embedded in the glass fiber cloth.
8. The method of claim 1, wherein the number of the outer skins is a plurality of layers.
9. The method of manufacturing a multi-surface modeling lining form for a concrete structure according to claim 1, wherein the number of the inner base layers is multiple.
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